| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 704266 | Electric Power Systems Research | 2016 | 10 Pages |
•Droop incorporated power flow solution approach in dc domain is proposed.•Devoid of PV, PQ, or slack bus assumptions and suitable for LV and MV systems.•Uses a heuristic method to solve power flow & modeled as a minimizing problem.•Performance is analyzed on four systems and R/X sensitivity is checked.•Improvement in power loss, voltage profile and load increment factor is achieved.
Rapid growth in the use of distributed generations in low voltage (LV) and medium voltage (MV) network is attributed the distribution systems ‘active’, which has made distribution power flow analysis a hot area of research. In this paper, a droop control based distribution power flow formulation is proposed and realized in the dc domain, which is independent of the various assumptions made in existing distribution power flow methods, e.g., unconstrained slack bus capacity, fixed power loads and generations, low R/X ratio etc. And, these assumptions are ill-suited to low and medium voltage systems in both autonomous and grid-connected topology, usually powered by small generators, intermittent renewable sources and also considering the high-resistance interconnecting power lines. The proposed method ensures performance enhancement with better load sharing among sources within the allowable limit. An optimization based numerical solution approach is used for solving the proposed technique. The performance of the system is investigated using a 10-bus low voltage microgrid system and on three IEEE distribution networks, viz., 12-bus, 33-bus, and 69-bus systems. The effectiveness of the proposed method is investigated and compared with existing literature works in terms of reduced power losses, improved voltage profile, R/X sensitivity, and maximum loading point.
